Extech CL500 Free and Total Chlorine Colorimeter

Extech's CL500 free and total chlorine colorimeter features an advanced optical system that assures high accuracy and repeatable readings. Meter meets the method requirements for monitoring chlorine in wastewater and drinking water with DPD powder chemistries. What's Included: 1.0 ppm free and total chlorine standards, zero chlorine standard, two test bottles with covers, ten packages of both free and total chlorine DPD, cleaning cloth, hard carrying case, and six AAA batteries. Meets requirements for wastewater and drinking water measurements Designed to meet US EPA method 330.5, and Standard Method 4500-Cl-G Measures up to 3.50 ppm with 0.01 ppm resolution Features data hold, auto-off and Min/Max functions Requires only 0.3 oz (10 mL) sample for test bottles Convenient kit includes everything needed for measurement